Disassembling And Assembling Rear Differential Lock Shift Cylinder - AR35.40-P-9135GW

Model 463 (except 463.270/271) 

as of model year 2013 up to model year 2019 

Courtesy of MERCEDES-BENZ USA

	Remove
1	Remove differential lock shift cylinder		AR35.40-P-9131GW
	Disassemble/assemble
2	Unscrew pressure switch (1)	Assembly:  The shift cylinder for the differential lock must be installed when tightening.
		Pressure switch to shift cylinder	*BA35.40-P-1005-01A
		Socket wrench bit	Fig 1
3	Remove bolts (15) and remove cover (14)	Cover (14) is spring-loaded.
		Assembly:  Seal (13) must be replaced.
		Bolt, cover to shift cylinder	*BA35.40-P-1002-01A
4	Remove piston (12) and push spring (9)	Assembly:  Installation position of dust boot (10) and seal boot (11) must be observed.
		Assembly:  Dust boot (10) and seal boot (11) must be replaced. Dust boot (10), seal boot (11) and piston (12) must be coated with grease.
		ABS sensor grease	*BR00.45-Z-1019-06A
5	Unscrew shift shaft (5) from shifter lever (3)	Assembly:  Threaded connection must be secured.
		Shift shaft to gearshift lever for cross-axle differential lock	*BA35.40-P-1003-01A
		Quick-acting adhesive, Loctite 270	*BR00.45-Z-1008-02A
6	Remove gearshift lever (3) and shift shaft (5) with switch spring (4) from the shift cylinder housing (2)
7	Disassemble shift shaft (5)	For easier disassembly and assembly of the separate parts, clamp the shift cylinder housing (2) into the vise.
		Assembly:  Circlip (8) must engage in the groove.
		Clamping device	Fig 2
	Clean
8	Clean parts	Cleaner	*BR00.45-Z-1025-04A
	Check
9	Check all parts for damage and wear and replace if necessary
10	Assembly in reverse order
	Install
11	Install differential lock shift cylinder		AR35.40-P-9131GW

DIFFERENTIAL LOCK SHIFT CYLINDER

Number	Designation		Model 460, 461 Model 463 up to model year 2019	Model 463 as of model year 2019
BA35.40-P-1002-01A	Bolt, cover to shift cylinder	Nm	20	-

DIFFERENTIAL LOCK SHIFT CYLINDER

Number	Designation		Model 460, 461 Model 463 up to model year 2019	Model 463 as of model year 2019
BA35.40-P-1003-01A	Shift shaft to gearshift lever for cross-axle differential lock	Nm	25	-

DIFFERENTIAL LOCK SHIFT CYLINDER

Number	Designation			Model 460, 461 Model 463 up to model year 2019	Model 463 as of model year 2019
BA35.40-P-1005-01A	Pressure switch to shift cylinder	Stage 1	Nm	20	-
		Stage 2	Nm	105	-

Fig 1: Identifying Socket Wrench Bit (620 589 01 09 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Clamping Device (381 589 00 31 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1008-02A	Quick-acting adhesive, Loctite 270	A 002 989 93 71
BR00.45-Z-1019-06A	ABS sensor grease	A 000 989 62 51 10
BR00.45-Z-1025-04A	Cleaner	A 005 989 19 71